Fitting member and manufacturing method thereof

Abstract

A fitting member that forms, together with a fitted member, a fitting structure between a protruding portion and a hole portion, the fitting member comprises a fitting member unit and a lubricating layer that covers the fitting member unit, wherein the lubricating layer includes a synthetic resin layer that has more elasticity than material used for the fitting member unit and inorganic particles that protrude from a surface of the synthetic resin layer.

1 . A fitting member that forms, together with a fitted member, a fitting structure between a protruding portion and a hole portion, the fitting member comprising: 
 a fitting member unit and    a lubricating layer that covers the fitting member unit, the lubricating layer including:    a synthetic resin layer that has more elasticity than material used for the fitting member unit and    inorganic particles that protrude from a surface of the synthetic resin layer.    
     
     
         2 . The fitting member according to  claim 1 , wherein the synthetic resin layer is a resin layer that includes a fluorocarbon polymer, and the inorganic particles are ceramic particles.  
     
     
         3 . The fitting member according to  claim 2 , wherein the ceramic particles are alumina particles.  
     
     
         4 . The fitting member according to  claim 1 , wherein the synthetic resin layer is a fluorocarbon polymer, an acrylic rubber or a silicon rubber.  
     
     
         5 . The fitting member according to  claim 1 , wherein the inorganic particles are ceramic particles that includes alumina, zirconia or titania.  
     
     
         6 . The fitting member according to  claim 1 , wherein diameters of the inorganic particles are set between a thickness of the synthetic resin and a thickness of approximately double thereof.  
     
     
         7 . A manufacturing method for a fitting member, according to which a lubricating layer is formed in which inorganic particles protrude from a surface of a synthetic resin layer, the manufacturing method comprising; 
 a process for applying to a surface of the fitting member unit a synthetic resin solution into which the inorganic particles have been dispersed,    a process for evaporating a solvent of the synthetic resin solution,    and a process for drying and solidifying a solute in the synthetic resin solution.    
     
     
         8 . The manufacturing method for a fitting member according to  claim 7 , wherein a percentage of the inorganic particles relative to the synthetic resin layer mixed into the synthetic resin layer is set at between 20 vol. % and 30 vol. %.  
     
     
         9 . The manufacturing method for a fitting member according to  claim 7 , wherein, when the fitting member unit is made of aluminum, the synthetic resin layer is a thermoplastic resin such as a polyphenylene sulfide (PPS) resin, a polybutylene terephthalate (PBT) resin or a nylon resin.  
     
     
         10 . The manufacturing method for a fitting member according to  claim 7 , wherein the synthetic resin layer bonds with the fitting member unit by means of a coupling agent that includes an alkoxy group so as to bond with surfaces of the inorganic particles of the synthetic resin layer.